Material Specifications

Expansion profiles are manufactured of high-quality materials. They conform to current provisions and requirements. Below are presented the properties of the individual materials and their chemical resistance.

Nitriflex® material according to standard DIN 18541.The Nitriflex® base material conforms to standard DIN 18541. It is a combination of specially selected components that are equipped with additional reserve material exceeding standard requirements. Manufactured according to DIN 18541, with adherence to the strictest standards. Manufacture is supervised by the Material Testing Office (MPA) in Dortmund, Germany.

Nitriflex® material according to in-house standard.The material, from which expansion profile inlays are manufactured, is a combination of specially selected PVC and rubber components.This material has proven its worth over the course of numerous years of use to seal expansion slits with elevated requirements.Nitriflex bands exhibit the greatest elongation at extension, the best resistance to chemicals, ageing and the best rubber flexibility.The thermal joining of these bands is hassle-free, because this material has very good thermal conductivity. For this reason, heaters with a power rating over 300 W should not be used for joining these bands.

Besaflex® (W-PCW)For requirements as for Besaflex®.

Besaflex®Besaflex expansion profile inlays, made of elastic PVC, are characterised by numerous good properties and provide savings during later use. Flexible soft PVC is in use since the 1930s, and its properties are constantly explored. Before it was used as inlays in expansion profiles, appropriate research has confirmed its properties, in particular resistance to ageing.Besaflex expansion profile inlays conform to all standard requirements, because of which they find broad use in the construction industry.They are resistant to influence by acid and alkali solutions, putrefaction and all other naturally occurring factors.

Material does not contain lead, cadmium or formaldehydes. The material is suitable for open air spaces. Resistant to oils, bitumen mass, oxidation, acids, alkali materials, micro-organisms and UV light. Resistant to ageing, permanently elastic.

Material

Besaflex ®(PCW)

Test method according to

Shore hardness (A)

70 +/– 5

ISO 868

Density

41 +/– 0,03 g/cm³

ISO R 1183

Tensile strength

≥ 10 N/mm²

ISO R 527-2

Relative elongation at break

≥ 250 %

ISO R 527-2

Relative elongation at break at 23 °C

≥ 250 %

DIN 53504

Yield strength

≥ 10 N/mm²

DIN 53504

Measurement divergence

+/– 0,7 %

DIN 16941

Linear expansion coefficient

15–17 x 10-5 K-1

DIN 53752

Fire resistance

B 2

Material does not contain lead, cadmium or formaldehydes. The material is suitable for open air spaces. Resistant to oxidation, acids, alkali materials. Resistant to ageing.

Material

Thermoplastic elastomer

Test method according to

Shore hardness (A)

72 +/– 5

Density

1,11 +/– 0,03 g/cm³

Tensile strength

5,0 MPa

ISO 37

Elongation at break

470 %

ISO 37

Yield strength

27 N/mm

ISO 34 metod C

Measurement divergence

+/– 0,7 %

DIN 16941

Linear expansion coefficient

15–17 x 10-5 K-1

DIN 53752

Bending suitability

> –60 °C

BS 2782-1

Deformation upon compression

23 %

ISO 815 type B

Resistance to ozone and UV light

no cracks or rifts

ISO 1431/1

Fire resistance

B 2

Material does not contain lead, cadmium or formaldehydes. Suitable for open air spaces.

Material

Besaflex®(HPVC)

Polypropylene (PP)

Test method according to

Density

1,52 g/cm³

1,04 g/cm³

DIN 53479

Material softening temperature

80 °C

DIN 53460/B

Elasticity modulus

3200 N/mm²

DIN 534457

Tensile strentgh

65 N/mm²

24 N/mm²

DIN 53455

Ball hardness

120 N/mm²

DIN 53446

Water absorptiveness

0,04 %

DIN 53495

Bending resistance

92 N/mm²

DIN 53452

Compensation

65 %

130 %

DIN 53455

Charpy impact resistance at 23 °C

5,5 KJ/m²

18 KJ/m²

DIN 53453

Linear tolerance

+/– 0,7 %

DIN 16941

Linear expansion coefficient

8 x 10-5 K-1

DIN 53752

Fire resistance

B2

B1

Material does not contain lead, cadmium or formaldehydes. Suitable for open air spaces.